Hello,

I will be upgrading Gerrit from the 3.8 series to the 3.9 series. I have scheduled the upgrade for Monday June 3rd at 8am UTC. It is immediately after the UTC morning backport & config window.

The upgrade requires the Gerrit service to be stopped for the duration of the upgrade. Given we do not need to reindex all the changes, the downtime should be just a few minutes.

Gerrit 3.9 brings:

• Support for diff3 rendering for changes having conflict markers (T359821) which corresponds to cgit merge.conflictStyle=diff3.
• User Suggested Edits, an easy way for reviewers to suggest code changes which can be easily applied by the change owner. One can imagine CI would be able to offers suggestions as well (such as phpcb from PHP CodeSniffer or eslint?).
• Gerrit would now use "Revert^2" syntax when crafting a revert instead of chaining them as "Revert "Revert "Revert...".
• And more UI changes

The release notes: https://www.gerritcodereview.com/3.9.html
The upgrade task: https://phabricator.wikimedia.org/T354887
Deployment calendar entry

Antoine "hashar" Musso
Wikimedia Release Engineering